John Deere 7820

Last Updated: July 2024

Overview

The John Deere 7820 is a versatile, large-frame row-crop tractor, manufactured between 2003 and 2007 in Waterloo, Iowa. It features a 6-cylinder John Deere diesel engine with 414 cubic inch (6.8 L) displacement. The tractor comes with a 20-speed AutoQuad-Plus transmission and provides substantial power, with PTO outputs ranging from 156.67 hp at 2100 rpm to 176.64 hp at 1650 rpm. It has a hydrostatic power steering system and hydraulic wet disc brakes. The 7820 has an operating weight of 21,000 lbs and is equipped with 600/65R28 front tires and 710/70R38 rear tires.
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Key Specifications

Power Output: 156.67 (PTO) at 2100 rpm, 171.05 (PTO) at 1951 rpm, 176.64 (PTO) at 1650 rpm

Transmission: Partial power shift (AutoQuad-Plus)

Drive Type: 2WD or 4WD

Operating Weight: 21000

Fuel Type: Diesel

Lift Capacity: 13618 (single outlet), 16872 (dual outlets combined)

Technical Specifications

Engine

Manufacturer
John Deere
Model
-
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
Diesel
Induction Type
Turbocharged (possibly intercooled)
Cylinders
6
Displacement (ci)
414 (6.8 L)
Bore (in)
4.19
Stroke (in)
5.00
Rated RPM
2100
Power Output (hp)
156.67 (PTO) at 2100 rpm, 171.05 (PTO) at 1951 rpm, 176.64 (PTO) at 1650 rpm

Transmission

Type
Partial power shift (AutoQuad-Plus)
Forward Gears
20
Reverse Gears
20
Total Gears
-

Dimensions

Length (in)
212.2
Width (in)
96 or 95.7 or 117.7 (based on axle)
Height (in)
125.2 or 125.4
Operating Weight (lb)
21000

Power Take-Off (PTO)

PTO Type
Independent with hydraulic wet disc clutch (rear)
PTO Speed 1 (rpm)
1000
PTO Speed 2 (rpm)
Unknown
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x2 2WD or 4x4 MFWD 4WD
Drive Type
2WD or 4WD
Steering Type
Hydrostatic power
Coolant Capacity (qts)
Unknown
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Ag
Manufacture - End Year
2007
Hitch Type
Three-Point Hitch
Hitch Category
Category 3
Hitch Position
Rear
Hitch Capacity (lb)
13618 (single outlet), 16872 (dual outlets combined)
Operator Station Type
Cab (standard)
Starter Type
Electric
Brake Type
Hydraulic wet disc
Hydraulic System Type
Closed-center pressure-flow compensated (PFC)

Test Results

Nebraska Tractor Test Laboratory - Test Date: April 19-22, 2004

[Test results content]

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